Window-fastening device



n. B. BUTLER.

WINDOW FASTENING DEVICE.

\/\/ EEEEE nuire srarss ROBERT B. BUTLER, OF CHICAGO, ILLINOIS.

WNDOW-FASTENENG DEVICE.

Application led January 22, 1921.

T0 (lll `lwhom t may concern:

Be it lrnown that l, Ronnn'r B. Bouman, a citizen ot' the United States, and a resident of the city of Chicago, inthe county ot Cool; and State of illinois, have invented certain new and useful Improvements in a lilindoveifastening Device; and l do hereby declare that the following is a full, clear,

and exact description of the same, reference being had to the accompanying drawings, and tothe numerals ot reference marked thereon, which torma part otr this speci'lication. 1

rlhis invention relates more particularly to an improved locking device for windows adapted to permit window sashes to be locked from the interior in open positions ot adjustment or in closed position.

It is an object oi this invention to provide a .locking device for balanced window sashes for the purpose of permitting the sashes to be moved into any open position ot adjustment and locked in said position from the inner side of the window against movement from the exterior of the window,

It is also an object of the invention to provide a window with a locking device mounted in the window frame -for holding the window sashes locked against movement in open or closed position.

Another object of the invention is to provide a window with a sash locking mechanism adapted to be held in release position by a gravity acting 'latch to permit i'ree movement of a sash.

it. turther object of this invention is to provide a window with a locking` device adapted 'for holding a sashloclrcd against movement in an open position ot adjustment` said device also having means for holding the looking device in release position to permit movement of the sash from either side ot the window if desired.

t is furthermore an object oilthe invention to equip a window frame with-sash locking devices manually operable from only one side ot thewindow trame to permit opening ot the sashes7 said locking devices being spring controlled to cause automatic locking ot the sashes in any one of a plurality ot open positions of adjustment or inclosed positions when actuating members are released by removing the hand of an operator therefrom.

lt is an important object of this invention to `provide a window locking device of eii'ee Specification of Letters Patent.

Iiatented liar. 7, 1922.

Serial NoA l39,062.

tive construction operable 'from the inner side ol a window and adapted to be locked in release position to permit movement oi' the window sashes from either side of the window, and also adapted to cause locking o'l' said sashes in open or closed position against movement from they outer side of the window.

Other and further important objects ot this invention will be apparent from the disclosures in the'speciiication and the accomilianying drawings.

lhe invention (in a preferred form) is shown in the drawings and hereinafter more tully described.

On the drawings:

Figure l is an elevation of the inner side oi' a window equipped with a locking device embodying the principles ot this invention.

Figure 2 is an enlarged detail section taken on line 2 2 ot Figure l.

Figure 3 is a vertical section of the window taken on line SH3 of Figure 2 showing the sash balancing weights and parts ot' the loclrin device.

.Figure a is an enlarged side elevation of the window shown in Figure l.

Figure 5 is an enlarged fragmentary detail section taken on line 5-5 of Figure l.

YFigure 6 is a iront elevation thereof.

Figure 7 is a plan view of a sash corner bracket with guide lug.

Figure 8 is a side view thereof.

Figure 9 is a fragmentary elevation of one ot' the window trame pulley stiles showing the sash guide grooves.

its shown on the drawings:

ik 'window is provided comprising a window trame embracing an inner casing l` and an outer casing 2 connected in the usual manner by two vertical pulley stiles 3. The upper ends or the stiles 3 are connected by a head board et while the lower ends of said stiies are connected by a sill board 5. rlie pulley stiles 3 are each provided with a vertical upper sash guide groove or slot 6 and a vertical lower sash guide groove or slot 7.

Slidably mounted in the window frame between strip stops 8, 9 and l() is a lower sash il andanupper sash l2 separated by the partingstop 9. rlhe upper corners oi? the upper sash 12 are out away to permit metal angle brackets 18 to seat therein. Screws la are used to hold the angle brackets secured in place. rlhe vertical arm of each CII angle bracket 13 has integrally .formed at right angles thereto a locking` or guide lug 15 having` an aperture 16 therein. The guide lugs 1:3 are disposed in the plane of the upper sash and project through the pulley stile slots (i `into the lockinfmr box 17 and the weight box 18, which are provided between the window casings 1 and 2 and the slotted iframe stiles The lower corners of the lower sash 11 have angle brackets 19 rigidly rsecured thereon by screws or other suitable means. An apertured lockingor guide lug 20 is integrally formed at right angles on each of the vertical arms oi said 'angle brackets 19. The guide lugs 2O project through the stile slots 7 into the boxes 1T and 18. y Y

lligidly secured to the upper ends o1? the 'frame stilles 3 and the traine head board 4 are pulley brackets 21 for rotatably supporting lower sash pulleys 22 and upper sash pulleys 23. Attached to the guide lugs 2O ot the lower sash 11 are two sash cords 24 which are trained over the lower sash pulleys 22 and are connected to a sash counter-poise weight 25 of suliicient weight to countcrbalance the weight of the lower sash 11. Sash cords 26 are attached to the guide lugs 15 of the upper sash 12 and are trained over the pulleys 23. The cords 2G are connected to a sash counterpoise weight 27 adapted to counterbalance the upper sash 12. f

The locking device for the upper sash 12 comprises a latch or locking' bar 28 disposed within the box 1T with the upper end pivotally supported on the pulley stile 3. The latch bar extends downwardly below the middle of the window frame and has a plurality ott spaced notches 29 in one margin thereot. The vlower end oi the-latch bar 28 is engaged behind a guide strap 30. Attached to the lower apertured end of the latch bar 28 is one end of a coiled control spring- 3l. the other end of which is secured to the pulley stile 3 to' hold the latch bar invertical locking position with one oi? the upper sash lugs 15 engaged in one or the notches 29 to hold the upper sash locked in position. The latch, bar 28 is bent near its lower end to provide a yoke 32. Pivotally attached to the yoke 32 is one end ot a link 33 the other end of which is pivotally connected to the upper end oit the inner arm 84 of a ulcrumedlatch releasing member which is pivot-ally mounted on a pin 35 at a bent portion of said releasing` member. An outer actuating' arm 36 is integrally connected `with the arm 34 and normally is adapted to be positioned vertically within an open casing''secured within a recess cut in the facing board 3S ot the inner window casing` 1 The arm 36 is provided 'with a finger opening 39 and 'Furthermore has the end thereof bent inwardly to form a stop iiange 40.

A similar locking device is provided tor the lower window sash 11 and comprises a vaci or cr'nirri uvi10"ie we' ltl loligla A1li intl lo 1 end pivotally'mounted on one end of the iframe sill board 5 or on the lower portion of the pulley stile 3 within the box 17. The

latch bar 41 has a plurality oi' recesses or notches 42 in one margin thereof. WThe' arm 45 and normally is adapted to be positioned vertically withinthe casing 37. The

arm 46 is provided with a linger opening 47 and with an integral stop flange 48. ,"1 coiledicontrol spring` 49 has one end thereof attached to the upper end of the latch bar 41 and the other end connected to the pulley stile 3. Y Y

.Each of the arms 3G and 46 has rigidly secured on the inner face thereof a projection orlug 50 to which is pivotally attached one end of'a curved or segment shaped grav-- ity acting' dog or lat-ching member 51. A notch v52 is provided in each dog 51. Openings are provided in fthe back wall oi' the casing 37 to permit the dogs 51 to slidabl v project therethrough. y

The operation is as follows:

lith the window sashes 11 and 12 in their closed positions the latch bars 28 and 41 are held in their vertical lockingrposition by the control springs 31 and 49 respectively, When the upper sash 12 is in closed position one of its lugs 15 is engaged in the uppermost notch 29 ol the latch bar 28 to hold the upper sash locked against movement. The lower sash 11in its closed position hasone of the lugs 20 thereof engaged in the lower most notch 42 of the lower sash latch har 4 thereby holding said lower sash locked` against movement.'

The upper and lower window sashes 12 and `11 are unlocked by simply pulling` the arms or levers 36 and 46 outwardly intl) the dotted line position of Figure 5, until the pivoted dogs 51 drop by gravity when the notches 52 thereof reach the base plate lci the casing 87. With the outward movement of the arms 36 and'46 the inner arms 34 and.` 45 of the fulcrumed members are actuated to cause the respective links 33 and 44 to throw the latchA bars 28 and 41 out oilatching en gagement with the sash lugs15 and 20. The dogs 51 engaging the casing back wall act to hold the latch bars 28 and 41 in unlatched i ,fressen bars 28 and Lil back into their normal latching positions as illustrated in Figure ll. Il the window sashes are positioned in open positions el adjustment to permit the lugs l5 and 2O thereof to engage in notches in the latch bars 28 and al the sashes are held locked against movement in open positions of adjustment. Should the lugs 15 and Q0 of the sashes be positioned that the notched latch bars do not lockingly engage said lugs the sashes may be adjusted upwardly or downwardly a slight amount until the sash lugs register with certain of said notches to lock the sashes against further movement.

The sashes may be unlocked by pulling the arms 3G and -lG outwardly thereby causing the latch bars 2S and al to swing away from the lat-ching lugs l5 and 20. The window sashes are thus unlocked and may be manually raised or lowered as desired. The window sash weights Q5 and 27 act to counterbalance the weight ot t-he lower and upper sashes to facilitate movement oitl the sashes in the window frame.

Each window sash is provided with a loelring device which is adapted to be operated independently et the locking device `tor the other sash. YVith the locking devices mounted in position in the window frame box 17 the latch bars 28 and il are adapted to be readily moved into and out et locking engagement with the sash lugs 15 and 20 to lock the sashes in closed position or in any desired open position of adjustment. When the sashes are locked in open or closed position it is impossible to move the sashes from the exterior of the window.- By pulling out the arms 36 and 4:6 until the notched dogs 5l are permitted to loclringly engage the back plate of the casing 37 the latch bars are held in their release position to permit the window sashes to be adjusted in t-he window frame from both sides of the window.

I am aware that numerous details oit construction may be varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted, otherwise than necessitated by the prior art.

I claim as my invention:

l. The combination with a window trame having slots therein, ot a sash slidably uiounted in said window trame, lugs on said sash projecting through said slots, a counterweight connected with said lugs, a locking device in said window frame, and means for adjusting said locking device into eugagement with one of said lugs to hold the sash locked against movement in any one of" a plurality ot positions otadjustment in the window frame.

2. The combination with a window -trame having slots therein, of sashes adjustably mounted in said window trame, lugs on said sashes projecting through said slots, and locking means in said window frame adapted to be adjusted trom the inner side of the window frame into* engagement with said lugs to hold the sashes looked aga-inst movement from the exterior of the window trame in closed and in open positions ol' adjustment.

3. rPhe combination with a window frame, of sashes adjustably mounted therein, locking means in said frame to hold the sashes locked in open and in closed positions against movement from the outer side of the frame, and means accessible only from the inner side of said :trame adapted to be operated to cause release of said locking means to permit adjustment of the sashes trom both sides ot the window.

4. The combination with a window trame, sashes adjustably mounted therein, lugs on said sashes projecting into said frame, latching members in said trame adapted to engage said lugs to hold the sashes locked in closed and in open positions of adjustment, means connected with said latching members for moving the same out of locking engagement with said lugs to permit movement of said sashes, and gravity dogs on said means adapted to engage the frame to hold said latching members locked in release position.

5. The combination with a window frame having slots therein, counterbalanced sashes adjustably mounted in said trame, lugs on said sashes projecting through said slots into said trame, notched latch bars pivotally mounted in said trame, resilient means connected with said latch bars and with said iframe for holding the latch bars in engagement with said lugs to hold the sashes locked in closed or in open positions et adjustment, an apertured casing recessed into the inner side of said frame, actuating members fulcrumed in said casing and projecting into said frame, links connecting said fulcrumed members with said latch bars, said fulcrumed members adapted to be operated to cause movement oit said latch bars into release position out of engagement with said lugs against the action of said resilienty means to permit movement of the sashes in said iframe, and notched gravity acting members pivoted on said tulcrumed members and projecting through said casing into said rame, said gravity acting members adapted to engage said casing to hold the latch bars locked in release position against the action ot'said resilient ineens to permit adjustment of the'seshes in the Window treme.

6. The combination With :L slotted Window frame, of a sesh afljustebly mounted therein, a lug on said sash projectingl into the freine through the slot thereof, and ineens in seid :treme operable only from the nnei'lsicle oi ythe freine oiVengagin-g seid lug to hold the sesli locked in seid Vfreine in closed oi in open positions against movement from the outer side of the freine.

7. The combination with a Window frame and e sash thereof, Ineens on seid sash projecting `into seid freine, e notched latch bei' acljustably mounted in seid easing, niesns for holding seid latch bei' in eleaseposition to permit adjustment of the sash in thewindow treme, and e spiing` connected with seid latch si"` adapted to entoineticftlly move the saine into locking engagement with `the ineens on said sash to hold the sash lookedV in e predetermined open position oil? adjustment When seid second mentioned means 1s released.

8. ln :i window fastening device, a. bei' extending along the Window casing beside the Window sash, said bei' homing notches therein, i lug on the sash adapted to co-opei'zite with seid notches to secure the seshin position, e spring hissing said bzn toward lug engaging position, said bei' vbeing` pivoted to the Window freineneai one encl of the sash and inea-ns in the window frame near the other entl of said sash for moving seid han against the influence of seid spring.

9. ln o Window fastening device, means for looking the upper seshjegainst movement, ineens for locking the lower sash against movement, two releasing Ineens, one

for moving each of said locking means to unlock position, and e -eonnnon pivot on which seid two releasing Ineens ere mounted.

'in testimony whereof I have heieunto suhseihetl my naine in the presence o1c two sul)- setibing Witnesses. i f

RBlEi-T E. BUTLER. lllitnesses: f

CAnIJoN HILL, Fimo E. Feinsten. 

